336BATTERY CASE56■ Optional battery case (BP-240)When using the optional battery case attached to the trans-ceiver, install 6 × AAA (LR03) size alkaline batteries as illus-trated at right.q Unhook the battery cover release hook (q), and open thecover in the direction of the arrow (w). (Fig.1)w Then, install 6 × AAA (LR03) size alkaline batteries. (Fig.2)• Install the alkaline batteries only.• Be sure to observe the correct polarity.• Do not pin the ribbon under the batteries.e Fit the cover in the direction of the arrow (e), then close(r). And hook the battery cover release hook until itmakes a ‘click’ sound (t). (Fig.3)CAUTION:• When installing batteries, make sure they are all the samebrand, type and capacity. Also, do not mix new and oldbatteries together.• Keep battery contacts clean. It’s a good idea to clean bat-tery terminals once a week.• Never incinerate used battery cells since internal batterygas may cause them to rupture.• Never expose a detached battery case to water. If the bat-tery case gets wet, be sure to wipe it dry before using it.NOTE: When the optional battery case is attached, thebattery type must be selected to “DRY BATT” when turn-ing the transceiver ON. ((☞ p. 11))qBP-240wFig.1Fig.2Fig.3ert